Having the DC fan get into the audio is a common problem for DC fans. It can be eliminated with filtering but usually an easy fix is to run the fan from another DC source, like a wall wort.
Ralph W4XE -----Original Message----- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Dakota Summerhawk Sent: Thursday, February 19, 2009 10:02 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Got some noise from a fan in the system Morning, I have a couple of M-10 radios run together with a 12VDC fan keeping them cool in the cabinet. However the power block has them all run into the same line fed by the power supply. You can hear the noise of the fan when you key the repeater. Would a filter help this on the positive line of the fan? Or maybe a coil to filter the noise? I am at a loss as to what might keep the system cool but also eliminate the noise of the fan as well. Thanks for the help in advance. Peter Summerhawk ------------------------------------ Yahoo! Groups Links
